Store of weapons (7)
'store of weapons' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for arsenal that I've seen before include "Mil. magazine; FA club" , "team effort" , "Ammo store" , "Ammunition store or English soccer team" , "Munitions store and English football team" .)
'store of weapons' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for armoury that I've seen before include "Gun store" , "Weapons store" , "Magazine for our army" , "Weapon store" , "Arsenal - magazine" .)